El Bar Americano en España by Pedro Chicote (1927, p.113)

0.5 lemonjugo de medio limón acid
ice — 3 ó 4 pedacitos de hielobase
1 copitaagua — 1 copita de aguadilution
nuez moscada rallada — Added at service.other
1 wholeyema de huevo fresco — 1 yema de huevo frescoother
1 tablespoonazúcar — 1 cucharada grande de azúcarsweetener
  1. Beat very well in the shaker and strain into a water goblet.
  2. Finish with a little grated nutmeg.

Garnish: Grated nutmeg

Ice: Ice